DREDGING TO MINIMIZE WAVE PENETRATION INTO A HARBOUR

H.P. Riedel, A.P. Byrne

Abstract

Wave protection within a new harbour development has been achieved by shaped dredging in place of long breakwaters. The dredging shape was initially established through wave refraction calculations and then confirmed and optimized in a physical three dimensional model. The cost of additional dredging for the specified shape was A$100,000 compared to estimated breakwater costs of A$l,000,000.